Flomoxef Impurity 36 CAS CATO-C4X-138236
| CAS No. | CATO-C4X-138236 |
| Molecular Formula | C5H8N4O2S |
| Molecular Weight | 188.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Flomoxef Impurity 36 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Flomoxef Impurity 36 (CAS CATO-C4X-138236) is a certified pharmaceutical impurity reference standard with the molecular formula C5H8N4O2S and a molecular weight of 188.21 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Flomoxef Impurity 36 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 188.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C5H8N4O2S |
| Molecular Weight | 188.21 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Flomoxef Standards
- Flomoxef Impurity 13 (CAS CATO-C4X-138213)
- Flomoxef Impurity 10 (CAS CATO-C4X-138210)
- Flomoxef Impurity 22 (CAS 56610-81-2)
- Flomoxef Impurity 12 (CAS 88570-74-5)
- Flomoxef Impurity 3 (CAS 83494-32-0)
- Flomoxef Impurity 48 (CAS CATO-C4X-138248)
- Flomoxef Impurity 12 (CAS CATO-C4X-138212)
- Flomoxef Impurity 59 (CAS 2095489-25-9)
Recommended Standards
- Methyl 5-amino-3-(methylthio)-1H-1,2,4-triazole-1-carboxylate (CAS 86009-00-9)
- Xanomeline Impurity 15 (CAS CATO-C4X-330115)
- Methyl 3-amino-5-(methylthio)-4H-1,2,4-triazole-4-carboxylate (CAS 79741-99-4)
- (S)-Methyl 2-amino-5-(ethylamino)-5-oxopentanoate (CAS 1000788-95-3)
- Isavuconazole Impurity 185 (CAS CATO-C4X-1236185)
- Palbociclib Impurity 111 (CAS 571189-16-7)
- Solifenacin Impurity 34 (CAS 1243274-81-8)
- (2E)-3-(thiophen-3-yl)prop-2-enoic acid (CAS 102696-71-9)
- 3-Nitropyrazin-2-amine (CAS 754196-97-9)
- 8-bromo-3-chloro-[1,2,4]triazolo[4,3-a]pyridine (CAS 1392804-08-8)
- 1-(1-Isopropyl-2-methyl-1H-imidazol-5-yl)ethan-1-one (CAS 403793-48-6)
- Apigenin 7-Glucoside (CAS 578-74-5)
- 3-azaspiro[5.5]undecane-10-carboxylic acid (CAS 1515298-42-6)
- Liraglutide(8-31)TFA Salt (CAS CATO-C4X-19922)
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